{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:LYXLKZZV3ZP4MRKVG2OX7LIMAH","short_pith_number":"pith:LYXLKZZV","canonical_record":{"source":{"id":"2502.13930","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"quant-ph","submitted_at":"2025-02-19T18:06:07Z","cross_cats_sorted":["cond-mat.stat-mech","hep-th","nlin.CD"],"title_canon_sha256":"05c07a0b7538564e168e42487e7cbe93a065fe2e5222d26e7b9d85f3625ae68f","abstract_canon_sha256":"c7c75a78b81248545d399f982ae8fd0c6b98862159d62780cdd5c52856ce89be"},"schema_version":"1.0"},"canonical_sha256":"5e2eb56735de5fc64555369d7fad0c01cb4137050172b2bb76ca94c4716d899e","source":{"kind":"arxiv","id":"2502.13930","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.13930","created_at":"2026-05-20T00:00:17Z"},{"alias_kind":"arxiv_version","alias_value":"2502.13930v2","created_at":"2026-05-20T00:00:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.13930","created_at":"2026-05-20T00:00:17Z"},{"alias_kind":"pith_short_12","alias_value":"LYXLKZZV3ZP4","created_at":"2026-05-20T00:00:17Z"},{"alias_kind":"pith_short_16","alias_value":"LYXLKZZV3ZP4MRKV","created_at":"2026-05-20T00:00:17Z"},{"alias_kind":"pith_short_8","alias_value":"LYXLKZZV","created_at":"2026-05-20T00:00:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:LYXLKZZV3ZP4MRKVG2OX7LIMAH","target":"record","payload":{"canonical_record":{"source":{"id":"2502.13930","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"quant-ph","submitted_at":"2025-02-19T18:06:07Z","cross_cats_sorted":["cond-mat.stat-mech","hep-th","nlin.CD"],"title_canon_sha256":"05c07a0b7538564e168e42487e7cbe93a065fe2e5222d26e7b9d85f3625ae68f","abstract_canon_sha256":"c7c75a78b81248545d399f982ae8fd0c6b98862159d62780cdd5c52856ce89be"},"schema_version":"1.0"},"canonical_sha256":"5e2eb56735de5fc64555369d7fad0c01cb4137050172b2bb76ca94c4716d899e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-20T00:00:17.809094Z","signature_b64":"FxGyC66Fgsn+ORQVPBYTiJ+Q9XwbXIvu46ySvyu9C7a+Er3S93SuGEv4fHO2OHO5OdpMQx0X08Bev736IxLkBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5e2eb56735de5fc64555369d7fad0c01cb4137050172b2bb76ca94c4716d899e","last_reissued_at":"2026-05-20T00:00:17.808284Z","signature_status":"signed_v1","first_computed_at":"2026-05-20T00:00:17.808284Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2502.13930","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-20T00:00:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h/GFhV6KGieXZndWZzC5qHUn92yLO+GTYX9doTY4gCTp9na18ocoHUf67DCLk/KzZAoDAvs6M2v7C8Mz/yEDCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T06:49:24.826472Z"},"content_sha256":"838158a21f90f2b7ec9361809d56fb72619c35dba755be991d501cfd8e4841aa","schema_version":"1.0","event_id":"sha256:838158a21f90f2b7ec9361809d56fb72619c35dba755be991d501cfd8e4841aa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:LYXLKZZV3ZP4MRKVG2OX7LIMAH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Diagnosing chaos with projected ensembles of process tensors","license":"http://creativecommons.org/publicdomain/zero/1.0/","headline":"","cross_cats":["cond-mat.stat-mech","hep-th","nlin.CD"],"primary_cat":"quant-ph","authors_text":"Kavan Modi, Mark T. Mitchison, Neil Dowling, Peter O'Donovan","submitted_at":"2025-02-19T18:06:07Z","abstract_excerpt":"The process tensor provides a general representation of a quantum system evolving under repeated interventions and is fundamental for numerical simulations of local many-body dynamics. In this work, we introduce the projected process ensemble, an ensemble of pure output states of a process tensor in a given basis of local interventions, and use it to define increasingly more fine-grained probes of quantum chaos. The first moment of this ensemble encapsulates numerous previously studied chaos quantifiers, including the Alicki-Fannes quantum dynamical entropy, butterfly flutter fidelity, and spa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.13930","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2502.13930/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-20T00:00:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pX3LNTCsbxjKRsPD7jMUYA+jeJg33fIbOVZU+3EpWm184K/VyZxB9xgBk8S6DWNCgL8bN0OMpqM5mW4knMj6Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T06:49:24.827135Z"},"content_sha256":"1e29f4e18f1c2220b2388304c99817ee067a1384ebf4bcaf7f44660417cf265d","schema_version":"1.0","event_id":"sha256:1e29f4e18f1c2220b2388304c99817ee067a1384ebf4bcaf7f44660417cf265d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LYXLKZZV3ZP4MRKVG2OX7LIMAH/bundle.json","state_url":"https://pith.science/pith/LYXLKZZV3ZP4MRKVG2OX7LIMAH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LYXLKZZV3ZP4MRKVG2OX7LIMAH/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-27T06:49:24Z","links":{"resolver":"https://pith.science/pith/LYXLKZZV3ZP4MRKVG2OX7LIMAH","bundle":"https://pith.science/pith/LYXLKZZV3ZP4MRKVG2OX7LIMAH/bundle.json","state":"https://pith.science/pith/LYXLKZZV3ZP4MRKVG2OX7LIMAH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LYXLKZZV3ZP4MRKVG2OX7LIMAH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:LYXLKZZV3ZP4MRKVG2OX7LIMAH","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"c7c75a78b81248545d399f982ae8fd0c6b98862159d62780cdd5c52856ce89be","cross_cats_sorted":["cond-mat.stat-mech","hep-th","nlin.CD"],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"quant-ph","submitted_at":"2025-02-19T18:06:07Z","title_canon_sha256":"05c07a0b7538564e168e42487e7cbe93a065fe2e5222d26e7b9d85f3625ae68f"},"schema_version":"1.0","source":{"id":"2502.13930","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.13930","created_at":"2026-05-20T00:00:17Z"},{"alias_kind":"arxiv_version","alias_value":"2502.13930v2","created_at":"2026-05-20T00:00:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.13930","created_at":"2026-05-20T00:00:17Z"},{"alias_kind":"pith_short_12","alias_value":"LYXLKZZV3ZP4","created_at":"2026-05-20T00:00:17Z"},{"alias_kind":"pith_short_16","alias_value":"LYXLKZZV3ZP4MRKV","created_at":"2026-05-20T00:00:17Z"},{"alias_kind":"pith_short_8","alias_value":"LYXLKZZV","created_at":"2026-05-20T00:00:17Z"}],"graph_snapshots":[{"event_id":"sha256:1e29f4e18f1c2220b2388304c99817ee067a1384ebf4bcaf7f44660417cf265d","target":"graph","created_at":"2026-05-20T00:00:17Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2502.13930/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The process tensor provides a general representation of a quantum system evolving under repeated interventions and is fundamental for numerical simulations of local many-body dynamics. In this work, we introduce the projected process ensemble, an ensemble of pure output states of a process tensor in a given basis of local interventions, and use it to define increasingly more fine-grained probes of quantum chaos. The first moment of this ensemble encapsulates numerous previously studied chaos quantifiers, including the Alicki-Fannes quantum dynamical entropy, butterfly flutter fidelity, and spa","authors_text":"Kavan Modi, Mark T. Mitchison, Neil Dowling, Peter O'Donovan","cross_cats":["cond-mat.stat-mech","hep-th","nlin.CD"],"headline":"","license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"quant-ph","submitted_at":"2025-02-19T18:06:07Z","title":"Diagnosing chaos with projected ensembles of process tensors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.13930","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:838158a21f90f2b7ec9361809d56fb72619c35dba755be991d501cfd8e4841aa","target":"record","created_at":"2026-05-20T00:00:17Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"c7c75a78b81248545d399f982ae8fd0c6b98862159d62780cdd5c52856ce89be","cross_cats_sorted":["cond-mat.stat-mech","hep-th","nlin.CD"],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"quant-ph","submitted_at":"2025-02-19T18:06:07Z","title_canon_sha256":"05c07a0b7538564e168e42487e7cbe93a065fe2e5222d26e7b9d85f3625ae68f"},"schema_version":"1.0","source":{"id":"2502.13930","kind":"arxiv","version":2}},"canonical_sha256":"5e2eb56735de5fc64555369d7fad0c01cb4137050172b2bb76ca94c4716d899e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5e2eb56735de5fc64555369d7fad0c01cb4137050172b2bb76ca94c4716d899e","first_computed_at":"2026-05-20T00:00:17.808284Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T00:00:17.808284Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FxGyC66Fgsn+ORQVPBYTiJ+Q9XwbXIvu46ySvyu9C7a+Er3S93SuGEv4fHO2OHO5OdpMQx0X08Bev736IxLkBg==","signature_status":"signed_v1","signed_at":"2026-05-20T00:00:17.809094Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.13930","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:838158a21f90f2b7ec9361809d56fb72619c35dba755be991d501cfd8e4841aa","sha256:1e29f4e18f1c2220b2388304c99817ee067a1384ebf4bcaf7f44660417cf265d"],"state_sha256":"d2173210f3f89962f2cc9818d2bbc1dae5d541cbf09f22e55069a0e4a75fddda"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nNioCgkhzNbaq72PXRF9iWn6It9OXcRhXQFZNDWkd+5WO6L6TxQJUxcmqTb8byJGKFqvbqsRsSiPeDKNvRfaAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T06:49:24.830583Z","bundle_sha256":"2a88e324a9690e6d598c16dde6c106a5f78b4f5b2a55d730be5443748782d917"}}